It is not just the CBs I have a strange event that come to mind.
I was flying a Seneca five to Malaga single pilot five years ago with its owner. I was flying at FL120 across the Madrid area. Ground temp at Madrid was 44 deg C
There were two large CBs left and right of my track so a picked a clear way between the two with blue sky above.
The aircraft was on autopilot.
All of a sudden I could not believe my eyes as the airspeed needle zoomed down from 155 KTS ias to 70 KTS ias in seconds.
I knocked the autopilot off puched the nose over and added power. The aircraft felt as if it had flown into a vacuum with no control response and no increase in IAS. The aircraft vertically dropped 2000 feet like an esculator. It all felt tame and surprisingly unscary. Then the feeling was like hitting air again and everything came alive. I have experienced wind shear before but nothing quite like that! anyone any ideas? As this felt more like flying into a Vacuum.
Pace